Application of Hankel Dynamic Mode Decomposition for Wide Area Monitoring of Subsynchronous Resonance

In recent years, subsynchronous resonance (SSR) has frequently occurred in DFIG-connected series-compensated systems. For the analysis and prevention, it is of great importance to achieve wide area monitoring incident. This paper presents a Hankel dynamic mode decomposition (DMD) method identify SSR parameters using synchrophasor data. The basic idea employ DMD technique explore subspace matrices constructed by synchrophasors. It analytically demonstrated that these combination fundamental modes. Therefore, can be calculated once modal parameter extracted. Compared with existing method, presented work better performances as requires much less Thus, more suitable for practical cases which characteristics are time-varying. effectiveness superiority proposed have been verified both simulations field